How about naming the icons on the main screen(s), or at least a toggle for it? I'm often getting frustrated with the 'clean' look of the new interface and having to click on multiple icons to get to where I need, just to figure out what each icon does. I shouldn't have to memorize them, which will obviously come with time. For example, the umbrella isn't intuitive at all to me to go to change the climate controls. I just feel like I have to click a whole lot more in the new interface to get to what I need instead of Haiku where there's great information presented as soon as I open the app. I can't even tell what the status of my system is immediately unless I click on the security badge icon.
Maybe even having all icons on the main page on the iphone. I haven't tried it on the ipad, but I assume there are more (if not all) icons on the first screen, rather than having to scroll around.
As of right now, Haiku is still my go-to for my system.